# def fib(n):
#     a, b = 0, 1
#     while b < n:
#         print(b, end=' ')
#         a, b = b, a+b
#     print()
# def fib2(n):
#     result = []
#     a, b = 0, 1
#     while b < n:
#         result.append(b)
#         a, b = b, a+b
#     return result

import math
content = dir(math)
print(content)
